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The focal length of the objective lens of compound microscope is always ..........(less\more) than the focal length of eye lens.

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Solution

Less
The objective lens has a very small focal length. The object is placed just over F of the objective lens forming a magnified image. This image is the object for the eye lens and lies between focus and optical center of the eye less as it has a greater focal length as compared to the objective lens. Since the new object is between focus and and optical center, it forms a virtual, magnified image which falls on the eye.

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